Modification and degradation of lignin by fungal redox enzymes

Plant biomass holds great promise as a renewable source for biofuels. Chemo-enzymatic processes release soluble sugars, which can be fermented to ethanol using conventional yeast strains. Lignin by-products, which are also amassed during this treatment, can serve as additional nutrient source to enhance ethanol production.

The aim of this project is to evaluate the potential of a number of fungal (redox-) enzymes to generate soluble lignin components during biomass processing. Reaction products shall be analyzed and tested in small-scale fermentation experiments for their usability as carbon source, but also their inhibitory effect on yeast with a collaboration partner in Sweden (Uppsala).

Methods used will mainly cover enzymatic lignin degradation, HPLC, UV/Vis spectroscopy and yeast cultivation techniques. A research stay in Uppsala is optional.

The anticipated project start is February 2016; the duration will be 6 months. Interested students are encouraged to apply at one of the following contact addresses:

Daniel Kracher (Daniel.Kracher@BOKU.ac.at)
Roland Ludwig (Roland.Ludwig@BOKU.ac.at)
Biocatalysis and Biosensor Research Group
BOKU Muthgasse 11; 3-01/53